| DTC Strategy |
- Control circuit range check
|
- Poor connection or damaged harness
- EGR cooler clogging
- EGR pipe clogging and leakage
- Intake manifold air leak
- EGR actuator stuck
|
| Enable Condition |
- EGR valve position close loop control active
- Target EGR valve set point is greater than 0%
- Actual EGR valve position is greater than 3.33%
- Controller PWM is greater than 5%
- Engine coolant temperature is greater than 55°C (131°F)
- Auxiliary battery voltage is 5V
|
| Threshold Value |
Case1 |
- PWA value for valve control is greater than 99%
|
| Case2 |
- PWA value for valve control is less than -99%
|
| Diagnostic Time |
|
| MIL ON Condition |
|